G'day all. I'm building a set of cargo drawers for my D40, and plan to bolt the frame to the rails that run along the bottom of the tray. Trouble is, I have no idea on how I might achieve this! Can anyone point me in the right direction as to whether there are special gizmos for this purpose or if anyone has done something similar? At this stage I'm thinking of a bolt and large washer under the rail, through the plastic sleeve on the rail and then through the frame. I have not yet looked close enough to see if this is possible. thanks in advance for any ideas.